# wcschr

From cppreference.com
< c‎ | string‎ | wide

Defined in header ``<wchar.h>`` |  |
wchar_t *wcschr( const wchar_t *str, wchar_t ch ); | (1) | (since C95)
/*QWchar_t*/ *wcschr( /*QWchar_t*/ *str, wchar_t ch ); | (2) | (since C23)

1) Finds the first occurrence of the wide character `ch` in the wide string pointed to by `str`.
2) Type-generic function equivalent to (1). Let `T` be an unqualified wide character object type.

  - If `str` is of type const T*, the return type is const wchar_t*.
  - Otherwise, if `str` is of type T*, the return type is wchar_t*.
  - Otherwise, the behavior is undefined.

If a macro definition of each of these generic functions is suppressed to access an actual function (e.g. if (wcschr) or a function pointer is used), the actual function declaration (1) becomes visible.

### Parameters

str | - | pointer to the null-terminated wide string to be analyzed
ch | - | wide character to search for

### Return value

Pointer to the found character in `str`, or a null pointer if no such character is found.

### Example

Run this code

    #include <wchar.h>
    #include <stdio.h>
    #include <locale.h>

    int main(void)
    {
        wchar_t arr[] = L"白猫 黒猫 кошки";
        wchar_t *cat = wcschr(arr, L'猫');
        wchar_t *dog = wcschr(arr, L'犬');

        setlocale(LC_ALL, "en_US.utf8");
        if(cat)
            printf("The character 猫 found at position %td\n", cat-arr);
        else
            puts("The character 猫 not found");

        if(dog)
            printf("The character 犬 found at position %td\n", dog-arr);
        else
            puts("The character 犬 not found");
    }

Output:

    The character 猫 found at position 1
    The character 犬 not found

### References

- C11 standard (ISO/IEC 9899:2011):

  - 7.29.4.5.1 The wcschr function (p: 435)

- C99 standard (ISO/IEC 9899:1999):

  - 7.24.4.5.1 The wcschr function (p: 381)

### See also

wcsrchr (C95) | finds the last occurrence of a wide character in a wide string (function)
wcspbrk (C95) | finds the first location of any wide character in one wide string, in another wide string (function)
C++ documentation for wcschr

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